17 lines
286 B
JavaScript
17 lines
286 B
JavaScript
const voter = {};
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const checkVoter = (vote) => {
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if (voter[vote]) {
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console.log('Duplicate', vote);
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return false;
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}
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voter[vote] = true;
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console.log('Success Vote', vote);
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return true;
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}
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checkVoter('Mike');
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checkVoter('Jack');
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checkVoter('John');
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checkVoter('Mike'); |